| Value | Category |
|---|---|
| -9 | Don't know |
| -7 | Legal skip |
| -6 | Unfinished questionnaire |
| -3 | Interviewer error |
| 1 | single family house/ semi-detached house |
| 2 | part of a house/ part of an apartment |
| 3 | apartment in a building with less than 10 dwellings |
| 4 | apartment in a building with 10 or more dwellings |
| 5 | makeshift dwelling/ temporary dwelling |
| 9 | other |